Home / 275,436.48-380,109.88-154,585.26

Finding the Fourth Proportional to 275,436.48, 380,109.88 and 154,585.26

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Solution

The fourth proportional to 275,436.48, 380,109.88 and 154,585.26 is: 213,331.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,436.48 : 380,109.88 = 154,585.26 : x
  2. Step 2: Convert to fraction form
    275,436.48/380,109.88 = 154,585.26/x
  3. Step 3: Cross multiply
    275,436.48x = 380,109.88 × 154,585.26
  4. Step 4: Simplify right side
    275,436.48x = 58,759,384,628.37
  5. Step 5: Solve for x
    x = 58,759,384,628.37/275,436.48
  6. Step 6: Final answer
    x = 213,331.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.